Relationship Paranoia?

I am currently dating this awesome guy that I really like, but I find myself constantly wondering if he is as satisfied with me and if he still feels the same way he did at the begining of the relationship. In the past, I've been with total jerks..who would cheat on me,and sometimes just break up with me randomly.And now Im super worried about how I act around my boyfriend right now..hoping I dont "mess anything up".I also get reeeally paranoid about little things. If he doesn't text me one night, I get paranoid. If he responds less than enthusiastically to something I say, I worry. And I shouldn't. Anyone have any advice? thanks :)